<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- /课程详情 开始 -->
    <section class="container">
      <section class="path-wrap txtOf hLh30">
        <a href="/" title class="c-999 fsize14">首页</a>
        \
        <a href="#" title class="c-999 fsize14">{{ courseShowInfo.subjectLevelOne }}</a>
        \
        <span class="c-333 fsize14">{{ courseShowInfo.subjectLevelTwo }}</span>
      </section>
      <div>
        <article class="c-v-pic-wrap" style="height: 357px;">
          <section id="videoPlay" class="p-h-video-box">
            <img :src="courseShowInfo.cover" :alt="courseShowInfo.title" height="357px" class="dis c-v-pic">
          </section>
        </article>
        <aside class="c-attr-wrap">
          <section class="ml20 mr15">
            <h2 class="hLh30 txtOf mt15">
              <span class="c-fff fsize24">{{ courseShowInfo.title }}</span>
            </h2>
            <section class="c-attr-jg">
              <span class="c-fff">价格：</span>
              <b class="c-yellow" style="font-size:24px;">{{ courseShowInfo.price }}</b>
            </section>
            <section class="c-attr-mt c-attr-undis">
              <span class="c-fff fsize14">主讲： {{ courseShowInfo.teacherName }}&nbsp;&nbsp;&nbsp;</span>
            </section>
            <section class="c-attr-mt of">
              <span class="ml10 vam">
                <em class="icon18 scIcon"/>
                <a class="c-fff vam" title="收藏" href="#" >收藏</a>
              </span>
            </section>
            <section class="c-attr-mt">
              <a v-if="isBuy || Number(courseShowInfo.price) === 0" title="立即观看" class="comm-btn c-btn-3">立即观看</a>
              <a v-else title="立即购买" class="comm-btn c-btn-3" @click="createOrder()">立即购买</a>
            </section>
          </section>
        </aside>
        <aside class="thr-attr-box">
          <ol class="thr-attr-ol clearfix">
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">购买数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{ courseShowInfo.buyCount }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">课时数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{ courseShowInfo.lessonNum }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">浏览数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{ courseShowInfo.viewCount }}</h6>
              </aside>
            </li>
          </ol>
        </aside>
        <div class="clear"/>
      </div>
      <!-- /课程封面介绍 -->
      <div class="mt20 c-infor-box">
        <article class="fl col-7">
          <section class="mr30">
            <div class="i-box">
              <div>
                <section id="c-i-tabTitle" class="c-infor-tabTitle c-tab-title">
                  <a name="c-i" class="current" title="课程详情">课程详情</a>
                </section>
              </div>
              <article class="ml10 mr10 pt20">
                <div>
                  <h6 class="c-i-content c-infor-title">
                    <span>课程介绍</span>
                  </h6>
                  <div class="course-txt-body-wrap">
                    <section class="course-txt-body">
                      <p v-html="courseShowInfo.description">
                        {{ courseShowInfo.description }}
                      </p>
                    </section>
                  </div>
                </div>
                <!-- /课程介绍 -->
                <div class="mt50">
                  <h6 class="c-g-content c-infor-title">
                    <span>课程大纲</span>
                  </h6>
                  <section class="mt20">
                    <div class="lh-menu-wrap">
                      <menu id="lh-menu" class="lh-menu mt10 mr10">
                        <ul>
                          <!-- 文件目录 -->
                          <li v-for="(chapter,index) in allChapter" :key="index" class="lh-menu-stair">
                            <a :title="chapter.title" href="javascript: void(0)" class="current-1">
                              <em class="lh-menu-i-1 icon18 mr10"/>{{ chapter.title }}
                            </a>
                            <ol class="lh-menu-ol" style="display: block;">
                              <li v-for="(video,index) in chapter.children" :key="index" class="lh-menu-second ml30">
                                <a :href="'/video/' + video.videoSourceId" :title="video.title" target="_blank">
                                  <span class="fr">
                                    <i
                                      v-if="video.isFree"
                                      class="free-icon vam mr10">免费试听</i>
                                  </span>
                                  <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                </a>
                              </li>
                            </ol>
                          </li>
                        </ul>
                      </menu>
                    </div>
                  </section>
                </div>
                <!-- /课程大纲 -->
              </article>
            </div>
          </section>
        </article>
        <aside class="fl col-3">
          <div class="i-box">
            <div>
              <section class="c-infor-tabTitle c-tab-title">
                <a title href="javascript:void(0)">主讲讲师</a>
              </section>
              <section class="stud-act-list">
                <ul style="height: auto;">
                  <li>
                    <div class="u-face">
                      <a href="#">
                        <img :src="courseShowInfo.avatar" width="50" height="50" alt>
                      </a>
                    </div>
                    <section class="hLh30 txtOf">
                      <a class="c-333 fsize16 fl" href="#">{{ courseShowInfo.teacherName }}</a>
                    </section>
                    <section class="hLh20 txtOf">
                      <span class="c-999">{{ courseShowInfo.intro }}</span>
                    </section>
                  </li>
                </ul>
              </section>
            </div>
          </div>
        </aside>
        <div class="clear"/>
      </div>
    </section>
    <!-- /课程详情 结束 -->
    <div class="mt50 commentHtml"><div>
      <h6 id="i-art-comment" class="c-c-content c-infor-title">
        <span class="commentTitle">课程评论</span>
      </h6>
      <section class="lh-bj-list pr mt20 replyhtml">
        <ul>
          <li class="unBr">
            <aside class="noter-pic">
              <img :src="comment.avatar" width="50" height="50" class="picImg">
            </aside>
            <div class="of">
              <section class="n-reply-wrap">
                <fieldset>
                  <textarea id="commentContent" v-model="comment.content" name="" placeholder="输入您要评论的文字"/>
                </fieldset>
                <p class="of mt5 tar pl10 pr10">
                  <span class="fl "><tt class="c-red commentContentmeg" style="display: none;"/></span>
                  <input type="button" value="回复" class="lh-reply-btn" @click="addComment()">
                </p>
              </section>
            </div>
          </li>
        </ul>
      </section>
      <section class="">
        <section class="question-list lh-bj-list pr">
          <ul class="pr10">
            <li v-for="(comment,index) in data.records" :key="index">
              <aside class="noter-pic">
                <img :src="comment.avatar" width="50" height="50" class="picImg">
              </aside>
              <div class="of">
                <span class="fl">
                  <font class="fsize12 c-blue">
                    {{ comment.nickname }}</font>
                <font class="fsize12 c-999 ml5">评论：</font></span>
              </div>
              <div class="noter-txt mt5">
                <p>{{ comment.content }}</p>
              </div>
              <div class="of mt5">
                <span class="fr"><font class="fsize12 c-999 ml5">{{ comment.gmtCreate }}</font></span>
              </div>
            </li>

          </ul>
        </section>
      </section>

      <!-- 公共分页 开始 -->
      <div class="paging">
        <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
        <a
          :class="{undisable: !data.hasPrevious}"
          href="#"
          title="首页"
          @click.prevent="gotoPage(1)">首</a>
        <a
          :class="{undisable: !data.hasPrevious}"
          href="#"
          title="前一页"
          @click.prevent="gotoPage(data.current-1)">&lt;</a>
        <a
          v-for="page in data.pages"
          :key="page"
          :class="{current: data.current == page, undisable: data.current == page}"
          :title="'第'+page+'页'"
          href="#"
          @click.prevent="gotoPage(page)">{{ page }}</a>
        <a
          :class="{undisable: !data.hasNext}"
          href="#"
          title="后一页"
          @click.prevent="gotoPage(data.current+1)">&gt;</a>
        <a
          :class="{undisable: !data.hasNext}"
          href="#"
          title="末页"
          @click.prevent="gotoPage(data.pages)">末</a>
        <div class="clear"/>
      </div>
      <!-- 公共分页 结束 -->
    </div>
    </div>
  </div>
</template>

<script>
import courseApi from '@/api/course'
import commentApi from '@/api/comment'
// import loginApi from '@/api/login'
import cookie from 'js-cookie'
import orderApi from '@/api/order'
export default {
  data() {
    return {
      data: {},
      page: 1,
      limit: 2,
      total: 10,
      comment: {
        content: '',
        courseId: '',
        teacherId: ''
      },
      courseShowInfo: {},
      chapterVideoList: [],
      isbuyCourse: false,
      token: '',
      loginInfo: {},
      orderNo: '',
      courseId: '',
      isBuy: false
    }
  },
  created() {
    if (this.$route.params && this.$route.params.id) {
      this.courseId = this.$route.params.id
    }
    this.getCourseInfo(this.courseId)
    this.getMemberInfo()
    this.getCommentsByCourseId(this.courseId, this.page, this.limit)
  },
  methods: {
    getCourseInfo(courseId) {
      courseApi.getCourseShowInfo(courseId).then(res => {
        this.courseShowInfo = res.data.data.courseShowInfo
        this.allChapter = res.data.data.allChapter
        this.isBuy = res.data.data.isBuy
      })
    },
    getCommentsByCourseId(courseId, currentPage, size) {
      commentApi.getCommentsByCourseId(courseId, currentPage, size).then(res => {
        this.data = res.data.data
      })
    },

    gotoPage(page) {
      this.getCommentsByCourseId(this.courseId, page, this.limit)
    },

    addComment() {
      if (cookie.get('user')) {
        commentApi.addComment(this.comment).then(res => {
          this.comment.content = ''
          this.$message({
            message: '添加成功',
            type: 'info'
          })
          this.getCommentsByCourseId(this.courseId, this.page, this.limit)
        })
      } else {
        this.$message({
          message: '请先登录',
          type: 'info'
        })
      }
    },
    getMemberInfo() {
      this.comment.courseId = this.courseId
      this.comment.teacherId = this.courseShowInfo.teacherId
      var user = cookie.get('user')
      if (user) {
        this.loginInfo = JSON.parse(user)
        this.comment.memberId = this.loginInfo.id
        this.comment.nickname = this.loginInfo.nickname
        this.comment.avatar = this.loginInfo.avatar
      } else {
        this.loginInfo = {}
        this.comment.memberId = ''
        this.comment.nickname = ''
        this.comment.avatar = ''
      }
    },
    createOrder() {
      orderApi.createOrder(this.courseId).then(res => {
        this.orderNo = res.data.data.orderNo
        this.$router.push({ path: '/order/' + this.orderNo })
      })
    }
  }
}
</script>
